Applying an insecticide directly to your pet is the quickest and most efficient way to kill fleas. One of the most famous products is Frontline Spray
. These kind of sprays penetrate to the skin where most of the fleas are found. Once the insecticide comes in direct contact with the fleas, it will only take a few minutes for the fleas to die. Products that are applied to one spot on the coat, like topicals and collars, are also very effective, such as Advantage for dogs
. These products provide long term whole body protection.